Introduction

Our source: data source

Our domain of interests primarily focus on datasets related to college life. We found three datasets before which included college-tuition dataset, college-basketball dataset and college-majors dataset.

Basically we’re interested in this aspect because they are somehow connnected to our school life. By researching and analyzing those data, it is a great opportunity for us to have a more well-rounded understanding with regard to this.

Finally, by considering the details of three datasets, we choose the college-tuition dataset as our main reasearch emphases. This dataset is both easily understandable and has sufficient data, which makes this dataset more reliable.

Summary Information

Here is the summary information we got from our data:

## $length
## [1] 10
## 
## $num_public
## [1] 1584
## 
## $num_private
## [1] 1281
## 
## $num_for_profit
## [1] 107
## 
## $avg_instate_tuition
## [1] 16491.29
## 
## $avg_out_of_state_tuition
## [1] 20532.73
## 
## $avg_instate_public
## [1] 6037.799
## 
## $avg_instate_private
## [1] 29432.44
## 
## $avg_outstate_public
## [1] 13615.96
## 
## $avg_outstate_private
## [1] 29436.48
## 
## $most_expensive_instate
## [1] "Columbia University"
## 
## $most_expensive_outstate
## [1] "Columbia University"

Based on our calculation, there are 10 colleges in the dataset. Among them, there are 1584 public schools and 1281 private schools. There are 107 schools run for profits. The average tuition for in-state students is $1.649129410^{4} and for out-state students is $2.053272510^{4}. The average tuition of public colleges for in-state students is 6037.7992424 and those for private colleges is 2.943243610^{4}.

The average tuition of public colleges for out-state students is 1.361595610^{4} and for private schools is 2.943648210^{4}. The university that has the highest in-state tuition is Columbia University and The university that havs the highest out-state tuition is Columbia University.

Table

The purpose of this table is to compare the total cost of students by finding the difference between in-state total cost and out-of-state total cost.

Name State Type In-state Cost Out-state Cost Difference
University of Michigan Michigan Public 26796 60884 34088
University of Virginia Virginia Public 29154 60055 30901
University of California: Davis California Public 30674 59669 28995
University of California: Berkeley California Public 30344 59336 28992
University of California: Irvine California Public 30877 59869 28992
University of California: Los Angeles California Public 29590 58582 28992
University of California: Riverside California Public 33108 62100 28992
University of California: San Diego California Public 26561 55553 28992
University of California: Santa Barbara California Public 29697 58689 28992
University of Maryland: Baltimore Maryland Public 11033 39267 28234
University of California: Merced California Public 30081 58095 28014
University of California: Santa Cruz California Public 30416 58430 28014
University of Texas at Austin Texas Public 21410 48284 26874
Virginia Military Institute Virginia Public 28290 55134 26844
University of Wisconsin-Madison Wisconsin Public 21669 47919 26250
University of North Carolina at Chapel Hill North Carolina Public 20177 46360 26183
Texas A&M University Texas Public 21404 46878 25474
University of Washington Washington Public 24315 49696 25381
University of Washington Bothell Washington Public 23015 48396 25381
University of Washington Tacoma Washington Public 22389 47770 25381

The table is sorted by the cost difference, from the highest to lowest, so we can see which college has the highest difference between in-state cost and out-state cost from the table. This table groups the college tuitions by its type, such as ‘Public’, ‘Private’, and ‘For Profit’. So we can see more clearly the differece between each type of college, and this group helps us get information easier from the table based on their types.

Chart

Chart 1

This chart shows the relationship between in-state tuition and out-state tuition with regard to colleges that are private, public, or run for profits.

We choose this chart to express this relationship because color points make it clear showing what out-state and in-state are like in different school types. Besides that, the axis data are also helpful showing the tuition.

Chart 2

This chart shows the relationship between in-state tuition and room & boards in different colleges.

We choose this chart in expressing the information because this chart enables us to see clearly the relationship between tuition and rooms. Also, the color depth of each hexagon shows the number of colleges.

Chart 3

This chart shows the relationship between in-state tuition and degree length in three different types of school.

We choose this chart to express information because it divides the graph into three parts. Each part shows a different school type, and in each chart there’s a relationship we can observe through the position and color of each bar.